A method of wireless communication includes repeatedly transmitting, from a mobile device to a communication node, a first message using increasing power levels for initiating a two-step random-access procedure until a termination condition is met. The first message includes a payload part and optionally a preamble sequence. The termination condition includes (1) the mobile device receives an indication from the communication node that the payload part was received successfully, or (2) a number of repeated transmissions reaches a threshold.
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5. The method of claim 1, wherein the termination condition is met when receiving an indication indicting a successful reception of the payload part from the communication node.
A method for managing data transmission in a communication system involves monitoring the transmission of payload data between nodes to ensure reliable delivery. The system detects when a payload part is successfully received by a communication node, using this as a termination condition to conclude the transmission process. This approach optimizes resource usage by avoiding unnecessary retransmissions once successful delivery is confirmed. The method may include error detection mechanisms to verify payload integrity before confirming successful reception. By dynamically adjusting transmission parameters based on real-time feedback, the system improves efficiency and reduces latency in data transfer operations. The solution is particularly useful in wireless or networked environments where reliable data delivery is critical, such as in IoT devices, mobile communications, or industrial control systems. The termination condition ensures that the transmission process stops only after confirming successful reception, preventing redundant transmissions and conserving bandwidth. The method may also integrate with existing communication protocols to enhance their reliability without requiring significant modifications to the underlying infrastructure.
6. The method of claim 1, wherein the first counter and the second counter are initialized after the reselecting of the preamble sequence.
A method for wireless communication involves managing counter values in a receiver to improve signal detection and synchronization. The method addresses the challenge of maintaining accurate timing and synchronization in wireless systems, particularly when switching between different preamble sequences used for initial signal acquisition. The technique ensures that counters tracking signal parameters are reset or reinitialized after a preamble sequence is reselected, preventing errors that could arise from stale or outdated counter values. This reinitialization step helps maintain synchronization accuracy and reduces the likelihood of false detections or missed signals. The method is particularly useful in systems where preamble sequences are dynamically adjusted, such as in adaptive modulation schemes or multi-mode communication protocols. By resetting the counters after reselection, the system ensures that subsequent signal processing operations rely on fresh, relevant data, improving overall communication reliability and performance. The technique is applicable to various wireless standards, including cellular, Wi-Fi, and IoT protocols, where precise timing and synchronization are critical for efficient data transmission.
7. The method of claim 2, wherein the indication indicates the NACK or the dynamic grant within a same channel occupancy time (COT).
This invention relates to wireless communication systems, specifically methods for managing channel occupancy time (COT) in wireless networks. The problem addressed is the efficient use of COT in wireless communication, particularly in scenarios where multiple devices share the same communication channel. The invention provides a method to indicate either a negative acknowledgment (NACK) or a dynamic grant within the same COT, improving communication efficiency and reducing latency. The method involves transmitting an indication signal that conveys either a NACK or a dynamic grant. A NACK is used to signal that a previous transmission was not successfully received, prompting a retransmission. A dynamic grant, on the other hand, is used to allocate communication resources dynamically, allowing devices to transmit data without waiting for a separate scheduling process. By combining these two functions into a single indication within the same COT, the method reduces the overhead and delays associated with separate signaling processes. The indication signal is designed to be transmitted within the existing COT, ensuring that the communication channel is used efficiently without requiring additional time slots. This approach is particularly useful in dense wireless networks where multiple devices compete for channel access, as it minimizes the time spent on control signaling and maximizes the time available for data transmission. The method can be applied in various wireless communication standards, including those based on orthogonal frequency-division multiple access (OFDMA) or other multiple access techniques.
8. The method of claim 2, further comprising, after receiving the indication, performing, by the mobile device, multiple listen before talk (LBT) attempts according to the dynamic grant.
A method for wireless communication involves a mobile device operating in a shared spectrum environment where dynamic grants are used to allocate transmission opportunities. The problem addressed is ensuring efficient and reliable communication in such environments, where interference from other devices or systems can disrupt transmissions. The method includes receiving a dynamic grant from a network, which specifies the conditions under which the mobile device can transmit. After receiving this grant, the mobile device performs multiple listen-before-talk (LBT) attempts to determine if the channel is clear before transmitting. The LBT process involves checking for ongoing transmissions or interference before proceeding with the transmission, reducing the likelihood of collisions and improving communication reliability. The dynamic grant may include parameters such as the number of LBT attempts, the duration of each attempt, or the backoff periods between attempts, allowing the network to adapt the transmission conditions based on current spectrum usage. This approach enhances spectrum efficiency and minimizes disruptions in shared wireless environments.
9. The method of claim 3, wherein the time-domain response window is configured by the communication node for the mobile device.
A system and method for managing communication in a wireless network involves configuring a time-domain response window for a mobile device by a communication node. The communication node dynamically adjusts the time-domain response window based on network conditions, device capabilities, or other operational parameters to optimize communication efficiency and reliability. This configuration ensures that the mobile device responds within a specified timeframe, reducing latency and improving synchronization in the network. The time-domain response window may be set to accommodate varying propagation delays, processing times, or other factors affecting communication timing. By dynamically configuring this window, the system enhances performance in diverse network environments, including high-mobility scenarios or congested networks. The communication node may also monitor the mobile device's adherence to the configured window and adjust it as needed to maintain optimal operation. This approach improves resource utilization and minimizes errors in data transmission, ensuring robust and efficient wireless communication.
14. The apparatus of claim 10, wherein the termination condition is met when receiving an indication indicting a successful reception of the payload part from the communication node.
A communication apparatus is designed to manage data transmission in a network, particularly addressing challenges in ensuring reliable payload delivery. The apparatus includes a transmitter configured to send a payload part to a communication node and a controller that monitors the transmission process. The controller determines whether a termination condition has been met, which signifies that the payload part has been successfully received by the communication node. Upon meeting this condition, the controller halts further transmission attempts for that payload part, optimizing network resources and reducing redundant data transfers. The apparatus may also include a receiver to obtain acknowledgment signals from the communication node, confirming successful reception. The controller evaluates these signals to assess transmission success, ensuring efficient and reliable data delivery. This system is particularly useful in networks where transmission reliability is critical, such as wireless or high-latency environments, by minimizing unnecessary retransmissions and improving overall communication efficiency.
15. The apparatus of claim 10, wherein the first counter and the second counter are initialized after the reselecting of the preamble sequence.
This invention relates to wireless communication systems, specifically to apparatuses for managing preamble sequence selection and counter initialization in communication devices. The problem addressed involves efficiently handling preamble sequence reselection and ensuring proper synchronization between communication devices, particularly in scenarios where preamble sequences need to be reselected during communication. The apparatus includes a preamble sequence selector that dynamically reselects a preamble sequence based on communication conditions or system requirements. The reselection process involves evaluating available preamble sequences and selecting an optimal one to improve communication reliability or efficiency. After reselection, the apparatus initializes a first counter and a second counter. These counters are used to track communication attempts, timing, or other relevant metrics. The first counter may monitor the number of preamble transmissions or retries, while the second counter could track timeouts or synchronization attempts. Initializing these counters after preamble reselection ensures accurate tracking of communication attempts following the new sequence selection, preventing carryover of outdated or irrelevant data from previous sequences. This approach enhances communication robustness and reduces the likelihood of synchronization failures or unnecessary retries. The invention is particularly useful in wireless networks where dynamic adaptation to changing conditions is critical for maintaining reliable communication links.
16. The apparatus of claim 11, wherein the indication indicates the NACK or the dynamic grant within a same channel occupancy time (COT).
This invention relates to wireless communication systems, specifically to apparatuses and methods for managing channel occupancy time (COT) in wireless networks. The problem addressed is the need for efficient signaling of negative acknowledgments (NACKs) or dynamic grants within the same COT to improve communication reliability and reduce latency. The apparatus includes a transceiver configured to transmit and receive signals in a wireless network. It also includes a controller that generates an indication to signal either a NACK or a dynamic grant within the same COT. The NACK is used to indicate that a previous transmission was not successfully received, prompting a retransmission. The dynamic grant is used to allocate resources for an upcoming transmission. By combining these signals within the same COT, the apparatus avoids the overhead and delay associated with separate signaling, improving overall system efficiency. The controller determines whether to send a NACK or a dynamic grant based on the current communication conditions and network requirements. The transceiver then transmits the indication within the COT, ensuring that the receiving device can quickly respond to the signal without waiting for a new COT. This approach is particularly useful in high-traffic scenarios where minimizing latency is critical. The apparatus may be part of a base station, user device, or other network node in a wireless communication system.
17. The apparatus of claim 11, further comprising, after receiving the indication, performing multiple listen before talk (LBT) attempts according to the dynamic grant.
This invention relates to wireless communication systems, specifically addressing challenges in managing channel access in environments where multiple devices compete for transmission opportunities. The problem solved involves efficiently allocating and utilizing communication channels while adhering to regulatory requirements, such as listen-before-talk (LBT) protocols, to avoid collisions and ensure fair access. The apparatus includes a wireless communication device configured to receive a dynamic grant from a network node, which specifies transmission parameters for the device. The dynamic grant may include details such as time slots, frequency resources, or power levels allocated for the device's use. After receiving the grant, the device performs multiple LBT attempts to assess channel availability before transmitting. These attempts are conducted according to the parameters defined in the dynamic grant, ensuring compliance with regulatory standards while optimizing transmission efficiency. The LBT process involves monitoring the channel for activity and waiting for a clear opportunity to transmit, reducing the likelihood of interference with other devices. The apparatus may also include mechanisms to adjust LBT parameters dynamically based on network conditions, such as congestion levels or signal quality, to further improve performance. This adaptive approach helps maintain reliable communication in varying environments. The invention enhances spectral efficiency and reduces latency by intelligently managing channel access while adhering to regulatory constraints.
18. The apparatus of claim 12, wherein the time-domain response window is configured by the communication node.
A communication apparatus is configured to process signals in a wireless communication system, particularly for managing interference or signal distortion in time-domain signal processing. The apparatus includes a time-domain response window that is dynamically adjustable to optimize signal reception or transmission. This window defines a time interval during which signal processing operations, such as filtering or equalization, are applied to mitigate interference or distortion. The apparatus further includes a controller that adjusts the window parameters, such as its duration or shape, based on communication conditions or system requirements. The time-domain response window is specifically configured by the communication node itself, allowing for real-time adaptation to changing channel conditions or interference patterns. This configuration may involve setting window boundaries, selecting filter coefficients, or adjusting processing algorithms to enhance signal quality. The apparatus may be part of a transceiver in a wireless device, such as a base station or user equipment, operating in systems like 5G or beyond. The invention addresses the challenge of maintaining reliable communication in dynamic environments by providing flexible time-domain signal processing.
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March 26, 2021
April 9, 2024
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